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March 26, 2026Scientific ReportsOpen Access

Interactive effects of electrical conductivity and light intensity on growth, yield, and nutrient dynamics of hydroponic lettuce

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Authors

NANazmin AkterHajee Mohammad Danesh Science and Technology UniversityLCLaura CammarisanoPlant (United States)SAShamim AhamedUniversity of California, Davis

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Implication

Evaluates the combined effects of electrical conductivity and light intensity on hydroponic lettuce growth, indicating important insights for crop management.

Key Points

  • The aim is to investigate how electrical conductivity and light intensity affect growth and nutrient dynamics in hydroponic lettuce.
  • Evaluated two ranges of electrical conductivity (EC1 and EC2) and three levels of light intensity (L1, L2, L3).
  • Measured growth parameters like leaf area and yield in a closed-loop hydroponic system.
  • Analyzed mineral uptake and nitrate levels across different treatments.
  • Highest leaf area (1338.31 cm2) and yield (57.97 g plant-1) occurred at EC1 with the highest light intensity (L3).
  • EC2 significantly reduced the uptake of essential macronutrients and micronutrients.
  • An inverse correlation between solution and leaf nitrate levels (R² = -0.80) was observed.

Cite This Study

Akter et al. (2026) studied this question.

synapsesocial.com/papers/69c4cd49fdc3bde4489197c1https://doi.org/10.1038/s41598-026-44508-2
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